3 Mounting and Commissioning
400
7UT613/63x Manual
C53000-G1176-C160-2
• Amplitude measurement with switched on test current:
Compare the indicated current magnitudes under
measurement
→
secondary
→
operational measured values secondary
with the actually flowing values:
This applies for all measuring locations included in the test.
Note: The
WEB Monitor
provides comfortable read-out possibilities for all mea-
sured values with visualisation using phasor diagrams (Figure 3-27).
If deviations occur that cannot be explained by measuring tolerances, either a con-
nection or the test setup is wrong:
– Switch off the test source and the protected object (shut down the generator) and
earth it,
– Re-check the assignment or the tested measuring location (Section 2.1.4 under
margin heading „Assignment of 3-phase measuring locations“).
– Re-check the settings for the magnitude matching (Subsection 2.1.4 under
margin heading „Current Transformer Data for 3-phase Measuring Locations“).
– Re-check the plant connections to the device and the test arrangement and
correct them.
If a substantial zero sequence current 3
I
0 occurs one or two of the currents of the
corresponding side must have a reversed polarity.
3
I
0
≈
phase current
→
one or two phase currents are missing;
3
I
0
≈
double phase current
→
one or two phase currents with reversed polarity.
– Repeat test and re-check the current magnitudes.
Figure 3-27
Phasor Diagram of the Secondary Measured Values — Example
Summary of Contents for SIPROTEC 7UT613 series
Page 16: ...Contents 16 7UT613 63x Manual C53000 G1176 C160 2 Literature 631 Glossary 623 Index 633 ...
Page 30: ...1 Introduction 30 7UT613 63x Manual C53000 G1176 C160 2 ...
Page 506: ...A Appendix 506 7UT613 63x Manual C53000 G1176 C160 2 7UT633 D E ...
Page 508: ...A Appendix 508 7UT613 63x Manual C53000 G1176 C160 2 7UT633 P Q ...
Page 510: ...A Appendix 510 7UT613 63x Manual C53000 G1176 C160 2 7UT635 D E ...
Page 512: ...A Appendix 512 7UT613 63x Manual C53000 G1176 C160 2 7UT635 P Q ...
Page 515: ...A 2 Terminal Assignments 515 7UT613 63x Manual C53000 G1176 C160 2 7UT633 B ...
Page 517: ...A 2 Terminal Assignments 517 7UT613 63x Manual C53000 G1176 C160 2 7UT633 N ...
Page 519: ...A 2 Terminal Assignments 519 7UT613 63x Manual C53000 G1176 C160 2 7UT635 B ...
Page 521: ...A 2 Terminal Assignments 521 7UT613 63x Manual C53000 G1176 C160 2 7UT635 N ...
Page 622: ...A Appendix 622 7UT613 63x Manual C53000 G1176 C160 2 ...
Page 632: ...Literature 632 7UT613 63x Manual C53000 G1176 C160 2 ...